package zz.extjs.dao;

import java.util.Iterator;

import org.json.JSONObject;

import zz.extjs.vo.Student;

public interface StudentDAO {
    //判断用户是否合法
	public Student getStudent(String sid) throws Exception;
	public Iterator<JSONObject> getList(String sql) throws Exception;
	public int ExcuteSQL(String sql,String flag) throws Exception ;
	public Iterator<JSONObject> getExamList(String sql) throws Exception;

}
